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MatPlus.Net Forum Competitions 4° Azemmour: Quelques formes acceptées
 
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(1) Posted by Abdelaziz Onkoud [Thursday, Jun 16, 2016 22:20]

4° Azemmour: Quelques formes acceptées


Quelques Formes Possibles :

Forme I
1.X Y 2. X Y‡
1.Y X 2.Y X‡

Forme II
1.X Y 2. X Y‡
1.Y X 2.Y X‡
1.X Y.2.X Y‡

Forme III
1.X Y 2. X Y‡
1.Y Z 2.Y Z‡
1.Z X.2.Z X‡

Forme IV
1.X Y 2. X Y‡
1.Y X 2.Y X‡
1.X Y.2.X Y‡
1.Y X 2.Y X‡

Forme V
1.X Y 2. X Y‡
1.Y Z 2.Y Z‡
1.Z T.2.Z T‡
1.T X 2.T X‡

X,Y,Z & T : des pièces blanches ou noires de mêmes natures.

Peut être , il y a d'autres formes...
 
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(2) Posted by Abdelaziz Onkoud [Friday, Jun 17, 2016 01:43]

Or

Forme VI
1.X Y 2.X Y‡
1.Y X 2.Y X‡
1.Z T.2.Z T‡
1.T Z 2.T Z‡
 
 
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(3) Posted by Diyan Kostadinov [Sunday, Jun 19, 2016 14:33]

You can see two examples here:
http://kobulchess.com/en/problems/originals-2016/1004-abdelaziz-onkoud-helpmate.html
http://kobulchess.com/en/problems/originals-2016/1008-rodolfo-riva-helpmate.html
 
 
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MatPlus.Net Forum Competitions 4° Azemmour: Quelques formes acceptées